Quick Reference (Cheat Sheet) #
Use this compact reminder during discovery, pilots, and decision reviews after you have read the method. Check the fit questions, measurement definitions, and possible failure modes below; record what evidence your current decision still needs. For a first introduction, use Quick Start. For detailed tables and structured examples, use the Reference Guide. The Synthesis Quick Reference summarizes case interpretations and their limits.
The Behavior Fit Assessment is a practitioner decision tool for comparing candidate behaviors across Dispositional Fit, Capability Fit, and Context Fit. It is not a validated measurement instrument. Treat the minimum dimension as a bottleneck and prioritization heuristic; it is not a deterministic probability of behavior.
A score of 6 out of 10 on each Behavior Fit Assessment dimension is a starting threshold that must be calibrated by domain, population, context, stakes, and observed behavior.
Four Fits and Stop Rules #
1. Problem Market Fit
- Users actively seek solutions, show workarounds, and pay in time or money
- Stop if any is missing after field observation
2. Behavior Market Fit
- Compare Dispositional Fit, Capability Fit, and Context Fit, then calibrate the screen and validate the candidate in realistic contexts
- Use the Behavior Fit Assessment as the default screen; use BSM to diagnose the limiting factor
- Stop if users want the outcome but avoid the behavior in a realistic trial
3. Solution Market Fit
- Completion rate to spec in the pilot window with denominators explicit
- TTFB compared with a target derived from the specific workflow and context
- Stop or redesign when the solution does not enable the behavior under realistic conditions
4. Product Market Fit
- Behavior retention at decision-relevant intervals, with denominators and cohorting
- Organic expansion that can be attributed to behavior visibility or network value
- Stop if retention depends on incentives not present in normal use
Canonical Metrics #
- Δ-B (pp): Post% minus Baseline% for the target behavior
Report denominators, window, sample, and assignment method - TTFB: Exposure to first completion time for the behavior
- Behavior Retention: Share of a cohort performing the behavior at decision-relevant intervals. Define the intervals and repeat criteria for the domain; D30 and D180 are examples, not universal checkpoints
- CRS:
min(Buyer Readiness, Champion Readiness, User Readiness)over the pilot window
Gate scale-up until CRS meets the domain threshold
Behavioral State Model #
The Behavioral State Model is a practitioner diagnostic model with six Personal Components: Personality, Perception, Emotions, Abilities, Social Status/Situation, and Motivations. It also includes two Context Components: the Social Environment and Physical Environment. The Behavioral State Model is a practitioner model, not a validated psychometric instrument or a universal prediction equation.
- Use the eight components to organize evidence about possible constraints after selecting a behavior
- Treat the apparent lowest component as a research and prioritization hypothesis, then verify it against observed behavior
Behavioral Selection #
Selection rule
- Enumerate candidate behaviors.
- Screen with the Behavior Fit Assessment, using a threshold calibrated for the domain and population.
- Prioritize candidates with stronger minimum-dimension ratings, then compare expected outcome impact, evidence quality, measurement feasibility, and realistic trial results.
Common Failure Modes #
- Wrong target behavior
- Context misfit
- Ability overestimation
- Negative social externalities
- TTFB too long
- Incentive misalignment
- Brittle reinforcement
- Hidden costs
See the Evidence Ledger for sourced claims and cases.